package org.learn.test;

public class Exercise02 {
    public static void main(String[] args) {
    String str = "17.7";
    double d1 = Double.parseDouble(str);
    System.out.println(d1);
    char c1 = '江';
    String str2 = c1 + "";
    System.out.println(str2);

    }
}
